The 71st annual Writers Guild Awards are being handed out tonight in simultaneous ceremonies in Los Angeles and New York. Deadline will be updating the winners here as they are announced. Here is the complete list of winners announced so far at the 2019 Writers Guild Awards, along with the list of nominees: FILM ORIGINAL SCREENPLAY Eighth Grade Written by Bo Burnham; A24 Green Book Written by Nick Vallelonga & Brian Currie & Peter Farrelly; Universal Pictures A Quiet…